In a simple, one-step direct trifluoromethylation of phenazine with CF3I we prepared and characterized nine (poly)trifluoromethyl derivatives with up to six CF3 groups. The electrochemical reduction potentials and gas-phase electron affinities show a direct, strict linear relation to the number of CF3 groups, with phenazine(CF3)6 reaching a record-high electron affinity of 3.24 eV among perfluoroalkylated polyaromatics.
Incremental Tuning Up of Fluorous Phenazine Acceptors.
Castro KP, TT Clikeman, NJ DeWeerd, EV Bukovsky, KC Rippy, IV Kuvychko, GL Hou, YS Chen, XB Wang, SH Strauss, and OV Boltalina.2016."Incremental Tuning Up of Fluorous Phenazine Acceptors."Chemistry - A European Journal 22(12):39303936. doi:10.1002/chem.201504122